Question

Question 3: Independent-Samples t-Test

Group Statistics
	type of school	N	Mean	Std. Deviation	Std. Error Mean
reading score	public	168	51.8452	10.42279	.80414
	private	32	54.2500	9.19677	1.62578

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	95% Confidence Interval of the Difference
									Lower	Upper
reading score	Equal variances assumed	.564	.453	-1.217	198	.225	-2.40476	1.97519	-6.29986	1.49034
	Equal variances not assumed			-1.326	47.496	.191	-2.40476	1.81377	-6.05260	1.24308

1. What was the independent variable in this analysis?
2. What was the dependent variable in this analysis?
3. Describe both samples (using N, M, & SD for each group).
4. What are the null and alternative hypotheses for this study?
5. Can you assume equal variances based on Levene’s Test?

1. Write out the t-test formula using the numbers given in the output. Make sure to write out the original formula in symbols before putting in the numbers from the output. You can either write out the formulas by hand and scan in the assignment or use the Equation Editor in Microsoft Word.
2. Complete Hypothesis Test Step 4 by completing the following items:

1. Decision about null hypothesis?
2. Is it significant?
3. Sentence in APA style.

Answer 1